docs: def CallUDFUNS(f, x):
      """
      We are given a UDF CFUNCTYPE and want to call it in python
  
      :param f: SpiceUDFUNS
      :type f: CFUNCTYPE
      :param x: some scalar
      :type x: float
      :return: value
      :rtype: float
      """
      value = c_double()
      f(x, byref(value))
      return value.value